ᐅ Ground source heat pump for a small single-story detached house
Created on: 2 Apr 2021 14:06
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blackarrow1990
Hello
we are planning a single-family house (living area 120 m2 (1,292 sq ft), without a basement, with a currently empty, unheated but insulated attic). The house will be well insulated (Ytong + external thermal insulation composite system) and heated with underfloor heating. The plot is small (400 m2 (4,306 sq ft)) and I think a ground source heat pump with ground probes would be the most sensible option. With the installation of the ground source heat pump, I would not have to pay for a gas connection or chimney. The heating costs should be somewhat lower. A KfW subsidy might also be possible, or am I mistaken?
1. How much space would be needed inside the house for the installation?
2. Would it be possible to place this in the attic?
3. Since the ceiling is planned as a wooden beam ceiling, would reinforcement of the ceiling be necessary at that location?
Thank you.
we are planning a single-family house (living area 120 m2 (1,292 sq ft), without a basement, with a currently empty, unheated but insulated attic). The house will be well insulated (Ytong + external thermal insulation composite system) and heated with underfloor heating. The plot is small (400 m2 (4,306 sq ft)) and I think a ground source heat pump with ground probes would be the most sensible option. With the installation of the ground source heat pump, I would not have to pay for a gas connection or chimney. The heating costs should be somewhat lower. A KfW subsidy might also be possible, or am I mistaken?
1. How much space would be needed inside the house for the installation?
2. Would it be possible to place this in the attic?
3. Since the ceiling is planned as a wooden beam ceiling, would reinforcement of the ceiling be necessary at that location?
Thank you.
Why should that be necessary? I have a bit less than 300 square meters (around 3,230 square feet) heated with an air-to-water heat pump and my annual costs are 850 euros. But there are much more efficient systems than mine. Compared to geothermal energy, you definitely save between 10,000 and 15,000 euros. Plus, you can even get a free photovoltaic system with a battery.
Forget geothermal energy; economically, it makes absolutely no sense.
Forget geothermal energy; economically, it makes absolutely no sense.
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knalltüte2 Apr 2021 21:19If only cost-effectiveness is the main priority, @Bookstar might be right.
You just need to ask the right questions if you want to get a positive answer regarding the approval of a ground source heat pump.
You just need to ask the right questions if you want to get a positive answer regarding the approval of a ground source heat pump.
It is important for the efficiency of a heat pump that the entire heating system is perfectly planned and executed. It is definitely recommended to familiarize yourself thoroughly with the topic, as many HVAC professionals often work on a rough estimate basis, which usually leads to poor results. If the heating system is well designed, an air-to-water heat pump can also be a good option.
A general question: Is the attic planned to be converted or finished in the near future? Heat pumps should not be oversized but selected to match the actual consumption.
A general question: Is the attic planned to be converted or finished in the near future? Heat pumps should not be oversized but selected to match the actual consumption.
Bookstar schrieb:
Why should that be necessary? I have a little less than 300 square meters (3,230 square feet) heated with an air-to-water heat pump and pay 850 euros per year. But there are much more efficient systems than mine. And compared to geothermal heating, you certainly save 10,000 to 15,000 euros. Plus, you even get a free photovoltaic system with a battery.
Forget geothermal heating; it is economically absolute nonsense. bookstar, your generalizing posts full of ignorance regarding geothermal heating systems are the real nonsense here.
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blackarrow19903 Apr 2021 10:44hanse987 schrieb:
Just a general question. Is the attic planned to be converted in the near future? Heat pumps shouldn’t be oversized but selected to match the actual consumption.We plan to convert the attic later (perhaps a hobby room with drywall construction and a small bathroom). For now, we want to insulate the wooden beam ceiling first.
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blackarrow19905 Apr 2021 10:16Is there a guide or literature on which heat pump would be best suited for such a small construction project? Thank you.
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